From: Ben Gras Date: Tue, 22 Jun 2010 09:38:20 +0000 (+0000) Subject: minix netbsd diff X-Git-Tag: v3.1.8~409 X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/mult.png?a=commitdiff_plain;h=556faf0d3a6254be449e6c9a48942f23a9bbc216;p=minix.git minix netbsd diff --- diff --git a/commands/Makefile b/commands/Makefile index db7413865..2eeae97b3 100644 --- a/commands/Makefile +++ b/commands/Makefile @@ -9,7 +9,7 @@ SUBDIR= aal add_route adduser advent arp ash at autil awk \ chmod chown chroot ci cksum cleantmp clear cmp co \ comm compress cp crc cron crontab cut datasizes date \ dd de decomp16 DESCRIBE dev2name devsize df dhcpd \ - dhrystone dirname dis88 du dumpcore easypack \ + dhrystone diff dirname dis88 du dumpcore easypack \ ed eject elle elvis env expand factor file \ find finger fingerd fix fold format fortune fsck \ fsck1 ftp101 ftpd200 getty grep gomoku head host \ diff --git a/commands/diff/Makefile b/commands/diff/Makefile index 4f1c9d5d1..d41c09782 100644 --- a/commands/diff/Makefile +++ b/commands/diff/Makefile @@ -2,6 +2,6 @@ PROG= diff SRCS= diff.c diffdir.c diffreg.c xmalloc.c -COPTS+= -Wall -.include +.include + diff --git a/commands/diff/diff.h b/commands/diff/diff.h index 5ac5f92e4..0eb6a5ef9 100644 --- a/commands/diff/diff.h +++ b/commands/diff/diff.h @@ -34,6 +34,8 @@ #include #include +#include + /* * Output format options */ diff --git a/commands/diff/diffdir.c b/commands/diff/diffdir.c index 42288d7cf..763e9728e 100644 --- a/commands/diff/diffdir.c +++ b/commands/diff/diffdir.c @@ -28,21 +28,30 @@ #include #include #include -#include +#include +#include #include #include #include #include +#include #include "diff.h" #include "xmalloc.h" +struct diffdirent { + int d_status; + int d_fileno; + unsigned short d_reclen; + char d_name[1]; +}; + +#define roundup(x, y) ((((x)+((y)-1))/(y))*(y)) + static int dircompare(const void *, const void *); static int excluded(const char *); -static struct dirent **slurpdir(char *, char **, int); -static void diffit(struct dirent *, char *, size_t, char *, size_t, int); - -#define d_status d_type /* we need to store status for -l */ +static struct diffdirent **slurpdir(char *, char **, int); +static void diffit(struct diffdirent *, char *, size_t, char *, size_t, int); /* * Diff directory traversal. Will be called recursively if -r was specified. @@ -50,8 +59,8 @@ static void diffit(struct dirent *, char *, size_t, char *, size_t, int); void diffdir(char *p1, char *p2, int flags) { - struct dirent **dirp1, **dirp2, **dp1, **dp2; - struct dirent *dent1, *dent2; + struct diffdirent **dirp1, **dirp2, **dp1, **dp2; + struct diffdirent *dent1, *dent2; size_t dirlen1, dirlen2; char path1[MAXPATHLEN], path2[MAXPATHLEN]; char *dirbuf1, *dirbuf2; @@ -154,25 +163,71 @@ diffdir(char *p1, char *p2, int flags) } } +static int +getdiffdirentries(int fd, char *buf, int nbytes) +{ + char *read_de; + int dentsbytes_actual; + int i, readlen = nbytes * 11 / 16; /* worst growth */ + int written = 0; + + lseek(fd, (off_t)0, SEEK_CUR); + + if(!(read_de = malloc(readlen))) + errx(1, "getdiffdirentries: can't malloc"); + + dentsbytes_actual = getdents(fd, (struct dirent *) read_de, readlen); + + if(dentsbytes_actual <= 0) + return dentsbytes_actual; + + while(dentsbytes_actual > 0) { + int namelen; + struct diffdirent *dde = (struct diffdirent *) buf; + struct dirent *de = (struct dirent *) read_de; + dde->d_status = 0; + dde->d_fileno = de->d_ino; + namelen = strlen(de->d_name); + dde->d_reclen = namelen + 1 + sizeof(*dde) - sizeof(dde->d_name); + strcpy(dde->d_name, de->d_name); + dde->d_status = 0; + assert(dentsbytes_actual >= de->d_reclen); + dentsbytes_actual -= de->d_reclen; + buf += dde->d_reclen; + read_de += de->d_reclen; + written += dde->d_reclen; + assert(written <= nbytes); +#if 0 + fprintf(stderr, "orig: inode %d len %d; made: inode %d len %d\n", + de->d_ino, de->d_reclen, dde->d_fileno, dde->d_reclen); +#endif + } + + return written; +} + /* * Read in a whole directory's worth of struct dirents, culling * out the "excluded" ones. - * Returns an array of struct dirent *'s that point into the buffer + * Returns an array of struct diffdirent *'s that point into the buffer * returned via bufp. Caller is responsible for free()ing both of these. */ -static struct dirent ** +static struct diffdirent ** slurpdir(char *path, char **bufp, int enoentok) { char *buf, *ebuf, *cp; size_t bufsize, have, need; - long base; int fd, nbytes, entries; +#ifdef __minix + struct statfs statfs; +#endif struct stat sb; - struct dirent **dirlist, *dp; + int blocksize; + struct diffdirent **dirlist, *dp; *bufp = NULL; if ((fd = open(path, O_RDONLY, 0644)) == -1) { - static struct dirent *dummy; + static struct diffdirent *dummy; if (!enoentok || errno != ENOENT) { warn("%s", path); @@ -180,14 +235,23 @@ slurpdir(char *path, char **bufp, int enoentok) } return (&dummy); } - if (fstat(fd, &sb) == -1) { + if ( +#ifdef __minix + fstatfs(fd, &statfs) < 0 || +#endif + fstat(fd, &sb) < 0) { warn("%s", path); close(fd); return (NULL); } +#ifdef __minix + blocksize = statfs.f_bsize; +#else + blocksize = sb.st_blksize; +#endif - need = roundup(sb.st_blksize, sizeof(struct dirent)); - have = bufsize = roundup(MAX(sb.st_size, sb.st_blksize), + need = roundup(blocksize, sizeof(struct dirent)); + have = bufsize = roundup(MAX(sb.st_size, blocksize), sizeof(struct dirent)) + need; ebuf = buf = xmalloc(bufsize); @@ -199,7 +263,7 @@ slurpdir(char *path, char **bufp, int enoentok) ebuf = cp + (ebuf - buf); buf = cp; } - nbytes = getdirentries(fd, ebuf, have, &base); + nbytes = getdiffdirentries(fd, ebuf, have); if (nbytes == -1) { warn("%s", path); xfree(buf); @@ -217,7 +281,7 @@ slurpdir(char *path, char **bufp, int enoentok) * the buffer into an array. */ for (entries = 0, cp = buf; cp < ebuf; ) { - dp = (struct dirent *)cp; + dp = (struct diffdirent *)cp; if (dp->d_fileno != 0) entries++; if (dp->d_reclen <= 0) @@ -226,7 +290,7 @@ slurpdir(char *path, char **bufp, int enoentok) } dirlist = xcalloc(sizeof(*dirlist), entries + 1); for (entries = 0, cp = buf; cp < ebuf; ) { - dp = (struct dirent *)cp; + dp = (struct diffdirent *)cp; if (dp->d_fileno != 0 && !excluded(dp->d_name)) { dp->d_status = 0; dirlist[entries++] = dp; @@ -237,7 +301,7 @@ slurpdir(char *path, char **bufp, int enoentok) } dirlist[entries] = NULL; - qsort(dirlist, entries, sizeof(struct dirent *), dircompare); + qsort(dirlist, entries, sizeof(struct diffdirent *), dircompare); *bufp = buf; return (dirlist); @@ -249,8 +313,8 @@ slurpdir(char *path, char **bufp, int enoentok) static int dircompare(const void *vp1, const void *vp2) { - struct dirent *dp1 = *((struct dirent **) vp1); - struct dirent *dp2 = *((struct dirent **) vp2); + struct diffdirent *dp1 = *((struct diffdirent **) vp1); + struct diffdirent *dp2 = *((struct diffdirent **) vp2); return (strcmp(dp1->d_name, dp2->d_name)); } @@ -259,7 +323,7 @@ dircompare(const void *vp1, const void *vp2) * Do the actual diff by calling either diffreg() or diffdir(). */ static void -diffit(struct dirent *dp, char *path1, size_t plen1, char *path2, size_t plen2, +diffit(struct diffdirent *dp, char *path1, size_t plen1, char *path2, size_t plen2, int flags) { flags |= D_HEADER; diff --git a/commands/diff/diffreg.c b/commands/diff/diffreg.c index d5cf47183..97de8644a 100644 --- a/commands/diff/diffreg.c +++ b/commands/diff/diffreg.c @@ -77,6 +77,8 @@ #include #include #include +#include +#include #include "diff.h" #include "pathnames.h" @@ -369,9 +371,13 @@ diffreg(char *file1, char *file2, int flags) /* redirect stdout to pr */ int pfd[2]; char *header; + int len; char *prargv[] = { "pr", "-h", NULL, "-f", NULL }; - xasprintf(&header, "%s %s %s", diffargs, file1, file2); + len = strlen(diffargs) + strlen(file1) + strlen(file2) + 10; + if(!(header = malloc(len))) + errx(1, "diffreg can't alloc"); + snprintf(header, len, "%s %s %s", diffargs, file1, file2); prargv[2] = header; fflush(stdout); rewind(stdout); @@ -535,12 +541,16 @@ char * splice(char *dir, char *file) { char *tail, *buf; + int len; if ((tail = strrchr(file, '/')) == NULL) tail = file; else tail++; - xasprintf(&buf, "%s/%s", dir, tail); + len = strlen(dir) + strlen(tail) + 1; + if(!(buf = malloc(len))) + errx(1, "splice can't alloc"); + snprintf(buf, len, "%s/%s", dir, tail); return (buf); } @@ -1308,22 +1318,22 @@ match_function(const long *f, int pos, FILE *fp) nc = f[pos] - f[pos - 1]; if (nc >= sizeof(buf)) nc = sizeof(buf) - 1; - nc = fread(buf, 1, nc, fp); + nc = fread((char *) buf, 1, nc, fp); if (nc > 0) { buf[nc] = '\0'; - buf[strcspn(buf, "\n")] = '\0'; + buf[strcspn((char *) buf, "\n")] = '\0'; if (isalpha(buf[0]) || buf[0] == '_' || buf[0] == '$') { - if (begins_with(buf, "private:")) { + if (begins_with((char *)buf, "private:")) { if (!state) state = " (private)"; - } else if (begins_with(buf, "protected:")) { + } else if (begins_with((char *)buf, "protected:")) { if (!state) state = " (protected)"; - } else if (begins_with(buf, "public:")) { + } else if (begins_with((char *)buf, "public:")) { if (!state) state = " (public)"; } else { - strlcpy(lastbuf, buf, sizeof lastbuf); + strlcpy(lastbuf, (char *) buf, sizeof lastbuf); if (state) strlcat(lastbuf, state, sizeof lastbuf); diff --git a/commands/diff/pathnames.h b/commands/diff/pathnames.h index ab79dca28..958c12314 100644 --- a/commands/diff/pathnames.h +++ b/commands/diff/pathnames.h @@ -20,6 +20,6 @@ * Materiel Command, USAF, under agreement number F39502-99-1-0512. */ -#include +#include #define _PATH_PR "/usr/bin/pr" diff --git a/commands/diff/xmalloc.c b/commands/diff/xmalloc.c index b5340a9fa..d0df526ec 100644 --- a/commands/diff/xmalloc.c +++ b/commands/diff/xmalloc.c @@ -90,6 +90,7 @@ xstrdup(const char *str) return cp; } +#if 0 int xasprintf(char **ret, const char *fmt, ...) { @@ -105,3 +106,4 @@ xasprintf(char **ret, const char *fmt, ...) return (i); } +#endif